# Introduction

This is the user documentation repository for the [Experimental Computing Laboratory (ExCL)](https://www.excl.ornl.gov) at Oak Ridge National Laboratory.

This site is undergoing development; systems and processes will be documented here as the documentation is created.

See the index on the left of this page for further detail.

Please acknowledge in your publications the role the Experimental Computing Laboratory (ExCL) facility played in your research. Alerting us when a paper is accepted is also appreciated. See [Acknowledgment](https://docs.excl.ornl.gov/acknowledgment) for details.

See [Requesting access](https://docs.excl.ornl.gov/excl-support/access-info) for information on how to request access to the system.

## How to Login

See [Access to ExCL](https://docs.excl.ornl.gov/excl-support/access) for more details.

* Shell login: `ssh login.excl.ornl.gov`
* ThinLinc Session: <https://login.excl.ornl.gov:300>

## Getting Assistance

Please send an email request to <excl-help@ornl.gov> for assistance. This initiates a service ticket and dispatches it to ExCL staff. Please include the following:

* System name (i.e. faraday, login).
* Software name (if causing problems or if requesting an installation)
* Your UID (login name). Do **not** send a password.
* Enough detail so we can replicate the problem.

## ExCL Cheat Sheet

[Download Cheat Sheet](https://github.com/ExCL-Docs/excl-user-docs/raw/master/cheat-sheets/excl-cheat-sheet.pdf)

{% embed url="<https://excl-docs.github.io/excl-user-docs/excl-cheat-sheet.pdf>" %}


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.excl.ornl.gov/readme.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.